Flame resistant, low pilling polyester fiber

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525437, 525444, 525448, 525474, 525538, 528272, 528283, 528287, 528302, 528308, 5283087, 428224, C08S 2020

Patent

active

051807939

ABSTRACT:
The invention is a polyester and a method for producing a polyester filament which has a combination of flame resistance and low pilling properties. The method comprises forming a polyester polymer from a mixture of two polymers, the first compound being the reaction product of terephthalic acid or dimethyl terephthalate, ethylene glycol, and an oxysilicon compound and the second compound being the reaction product of terephthalic acid or dimethyl terephthalate, ethylene glycol and a phosphinic acid in the amount between 0.5 and 20 mole percent of the terephthalate acid and monomer. In particular, the invention also comprises the enhanced fiber formed by the process, as well as the fabrics having a pilling of about 3 to less than 5 as measured in accordance with ASTM D-3512-82.

REFERENCES:
patent: Re783 (1981-10-01), Kleiner et al.
patent: 3335211 (1967-08-01), Mead et al.
patent: 3576773 (1969-06-01), Vaginay
patent: 3941752 (1976-03-01), Kleiner et al.
patent: 3953394 (1976-04-01), Fox et al.
patent: 4033936 (1977-07-01), Bollert et al.

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